Internal-combustion engine.



I. K. EDWARDS.

INTERNALCOMBUSTION ENGINE.

APPLICATION FILED ocT.1|. 1913.

Patented. June 8, 1915.

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mysan/u comsusnoN ENGINE. V APPCATION FILED OCT. H. 1913. 1,14%959@ Patented'June 8, 1915.

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INTERNAL COIVIBUSTIONl ENGINE.

APPL|CAT|0N FLED OCT|1|| 913. y 1,1%2,508. Patented June 8, 1915.

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l -4 V, V in Fig. I. Fig. VI is an inverted'plan view of the cylinder head. Fig. VII ris anl cylinder head opposed v fuel inlet ports l0 nnrrnn is'ga'rns rarnn'r ernten. i

WORN K. EDWAQRDS, OF PHILADELPHIA, PENNSYLVNIA.

INTERNAL-COMBUSTION ENGINE.

To all whom it may concern:

Be it known that I, JOHN K. EDWARDS, of

have invented a certain new and useful Im'- provement in Internal-Combustion Engines,

whereof the'following is a,speciication, reerence being had to theaccompanying drawings. Y

My invention relates to engines wherein a single valve is operatively "connected with.

the crank shaft to control both the'inlet and exhaust valves, and, it is the object of my invention to provide simple and eiiicient means to positively, operate such a valve.

As' hereinafter described, my invention includes a hollow conical valve so constructed and arranged as to be maintained tight by the pressure in the engine cylinder, without the 'employment Aof packing' or adjusting means, and, said valve is .operatively con-l nected with the crank shaft by- Geneva stop gearing arranged to positively intermittently rotate said valve in proper time with respect to the movements of the piston.

My invention includes the various novel features of construction and arrangement hereinafter more definitely speciied.n In thedraw'ings z--Figure I is a'planl view of an engine embodying my invention. Fig. II is a vertical sectional'view ltaken on the line II, II in Fig. I. Fig. III is a. vertical sectional view taken on the line III, III .in

Fig. IV

is a vertical sectional view taken on the line inverted plan view of the rotary hollow conical valve.

'In said gnresg'the cylinder Iincl'udes the water .chamber 2 surrounding the piston chamber 3 provided with the piston 4. The

is a vertical sectional'.`viewf taken on the line IV IV in Fig'. I. `F1g. "V

5 has the water chamber 6.'

said' vSpecification of Letters Patent.

Patented J une 8, 1915.

Applicaties filed october 11, .1913. serial No. 794,579.

extending through said head 5, convenl rently Aprovided with the oil passageway 2O Philadelphim in the State ofPennsylvania,

' piston 4 by the pitman 26 engaging the pin byv which said valve and its seat may be lubricated.

VThe crank shaft 22 is journaled in the bearings 23 in the engine base 24 and has its crank 25 operatively connected with said '27 .in said piston. Said crank shaft 22 has the beveled gear 30 at the outer end thereof engaging the'bevel gear 3l on the counter shaft 32 which extends parallel with the axis of the engine cylinder andis journaled the'bearing 34 on 'saidbase 24 and in the bearing-'35 on the-'cap 3 which covers the water chamber 6 in .said head 5. Said counter shaft 32 has the intermittent gear wheel 38 extending above said head and having four teeth 41, 42, 43 and 44 on one-y half of its periphery with cylindrical sectors 45 of uniform radius between them. The Geneva stop gear 48V on said stein I9 of the valve 18 has eight gear teeth recesses in its periphery fitted to the teeth on said interymittent gear38 and has sectors 49 between said recesses curved to fit the sectors 45 on said intermittent gear; whereby said valve l-ispositively intermittently turned to open and close 'said inlet and exhaust ports and said ignitionrecess in proper relation with the movementsosaid piston 4; .being prevented from' turning otherwiseby the engagement. ot said sectors45=and 49.

"i The-engine abovefdescribed is adapted for four cycle operation, saidfcra'nk shaft 22 making: two revolutions for each revolun ofthe intermittent gear 38;.and, the t th 4,1, 42, 43 and 44 on said gear are so spaced that said valve 18 is turned to leave the fuel inlet ports'IO open while' said crank shaft 22 turns one hundred and eightydegrees from the upper limit of its stroke, in the direction of the arrows marked thereon in Figs. II and III, then maintain said pprts y.I0 closed during the succeeding 'movement of said cra'nk shaft through one hundred and eighty degrees until the 'piston 4..reaches the upper limit*i of its stroke, and still maintain said ports 10 closed` while .the crank shaft turns from the upperI limit of its strke one hundred andeighty degrees under the impulsel of the ignite 'l-gases, and, then open said exhaust ports and maintain `them open while said crank shaft 22't'1rns one hundred vand eighty degrees. Ilfhereupon, the tooth iio ' i Lisanne end of said cylinder with `two mametrically opposed fuel inlet ports and two diametrically opposed exhaust ports opening there-l through, equidistantly spaced in the circumference of said seat; a spark plug extending in an ignition recess .in said 'valve seat; a hollow conical valve fitted to rotate in said valve seat-and having a stem extending through said head; a crank shaft; a pitinan operatively connecting said crank shalt with said piston; a bevel 'gear on said crank shaft; a counter shaft extending parallel with the axis of said cylinder; a bevel gear on said counter sha-tt engaging the gear on said crank shaft; an intermittent gear on 8G, said counter shaft extending above said headE havingfour teeth on one halt ot' its periphery with cylindrical sectors of uniform.

radins between them; a Geneva stop wheel on said valve stem having eight gear teeth 8 engaging said gear i8 closes saidexhaust ports, and, the tooth i3 also engaging said gear i8 'thereupon opens said inlet valve l0 to the initial position shown in the drawingsw llt may be observed that when said valve 1S is turned to close the inlet ports l0 one ot the ports 2l in said valve registers wi h the ignition l-'l so as to open the latter to perinit the spark plug 15 to ignite the charge at the proper time. However7 is to be understood that my invention is applicable to engines which are not adapted .tor :tour cycle operation. Thcretore'it is to he understood that l. do not desire to limit myself to the precise details ot construction and arrangement herein set forth, as it is obvious that various modifications may be made therein *without departing from the essential features of my invention as dened in the apa@ `pended claims..

l claim l. ln an, internal combustion engine, the combination with a cylinder including a water chamher surrounding a comlmstion chamber provided with a piston; of a head having a water chamber in communication with the water chamber in said cylinder and a conical valve seat at the end of said cylinder 4with two diametrically opposed fuel inlet' ports, and two diametrically opposed exhaust ports, opening therethrough, equidistantlyspaced in. the circumference ot' said seat; a spark plug extending in an ignition recess in said valve seat; a hollow conical valve vlitted to rotate in said valve seat and haviingr a stem extending through said head; a removable cap on said head, covering the 'water chamhertherein and having a shaft bearing: a crank shaft; a pitman operatively connecitingr said crank shattJ with said piston; a bevel gear on said crank shaft; a counter shaft extending parallel with the of said cylinder, in the bearing on said cap a. bevel gear on said counter shaft engaging; the gear on said crank shaft; an intermittent gear on said counter shaft extend ing above said head, having' four teeth on one half of its periphery with cylindrical sectors of uniform radius between. them; a Geneva stop wheel on said valve stem having: eight gear teeth recessesin its .periphery iitted to the teeth on said intermittent gear,

and having sectors between said recessesv curved to fit the sectors on said intermittent Wear; whereby said valve is positively intermittently turned to open and close said inletv and exhaust ports and said ignition recess in proper time with the movements of said piston and is prevented trom turning other wise, and is maintained tight by the pressure in said cylinder'. l

2. ln aninternal combustion engine' the combination with av cylinder including la combustion chamber provided with'a piston;

of head having a conical valve seat at the recesses in its periphery fitted to the teeth on said intermittent gear, and having sectors between said recesses curved to lit the sectors on said intermittent gear; whereby said valve is positively intermittently turned to open and close said inlet and exhaust ports and said ignition recess in proper time with the movements of said piston and is prevented trom turning otherwise, and is maintained tight by the pressure in said cylinder.

3. ln an internal combustion engine7 the combination with a cylinder including aeonn bustion chamber provided with a piston; ot a head having a conical valve seat at the :nl of said cylinder with two diametrically opposed fuel. inlet ports and two diametrically opposed exhaust ports opening therethrough.y cquidistantly spaced in the circumference ol' said seat; a hollow conical valve fitted to rotate in said valve seat and having a stem extending through said head; a crank shalt; pitman operatively connecting' said crank shaft with said piston; a bevel gear on said crank shaft; a counter shaft extending parallel with the axis of said cylinder; :i bevel gear on said counter shaft engaging the gear on said crank shaft; an intermittent gear on said counter shaft extending above said head, having four teeth on one halt' of its periphery with cylindrical sectors of uniform radius between them; a Geneva stop wheel on said valve stem having eight gear teeth recesses in its periphery Fitted to the teeth on said intermittent gear, and having sectors between said recesses curved to lit the e* sectors on said intermittent gear; whereby said valve is positively intermittently turned to open and close said inlet and exhaust ports in proper time with the movements of said piston and is prevented from turning other; wise,l and is maintained tight by the pres sure in said cylinder.

4. In an internal combustion engine, the

combination with a cylinder including.; ai combustion chamber provided with a pis indegno@ lton, and having a conical valve seat at the end 'of said'cylinder with a fuel inlet port xd 6. In an internal combustion engine, the combination with a' cylinder including a and an exhaust `port opening therethrough; 'a hollow conical valve fitted to rotate in said valve seat and having a stein; a crank shaft; a pitinan operatively connectingpsaid. crank shaft with said piston; a-bevel gear on said' crank shaft; a counter vshaft extending parallel with the axis of said cylinder; a bevel gear onsaid counter shaft engaging thegear on said crank shaft; an 'intermittentrgear l on said counter shaft extending above said head, having four teeth oii'one half .of its yperiphery with cylindrical sectors of uni' form radius between them; a Geneva stopv wheel on said valve stem 'having eight gear teeth recesses in its' periphery fitted to the teeth on -said intermittent gear, and having sectors between said-recesses curved to tit the sectors on said intermittentgear; whereby 4.said valve 1 is positively intermittently turned to'open and close said inlet and exhaust ports in proper time With the move-- m'ents loffsiaid piston and is prevented from turning otherwise, and. is' maintainedI tight by the pressure in said cylinder. 'j

5l In 4an internal combustionengii'ie, the combination with a cylinder including a combustion chamber provided with a piston,

'and having a conical valve seat at the end of said cylinder with aV fuel inlet port and an 'exhaust port opening therethrough; a hollow conical valve fitted to rotate in said valve seat and having a'stem; a crank shaft; fa pitman operativelyconnecting said crank shaft With said piston; a bevel gear on said crank shaft; a counter shaft extending parallelY with the axis of said cylinder; a. bevel gear on said counter shaft engagingV the gearon said crank shaft: an intermittent gear on.

said counter shaft extending above said head, having teeth withcylindi-ical sectors of unif-o'rn radius between them' a Geneva sto) 3 ivheel on said valve stem having teeth rc tosses in'its periplieryfitted to the teeth on said intermittent gear, and having sectors y between said recesses curved to fit the'sectors .e lon -said intermittent gear; l.whereby said -valveyis positively intermittently tin-ned to' open and close said inlet and exhaust ports and said ignition recess in proper time withy`v the movements of said piston and -is preventved from `turning otherwise,.and is'main` tained tight by the pressure in said cyliner;

combustion chamber provided' with a piston and having a conical valve seat with two ing tivo portsppening therethrough, equi. distai'itly spaced in the circumference of said valve, and having a stem; a crank shaft operatively 'connected with. said piston;

means operatively connecting said crank shaft With said'valve stem including Geneva stop gearing arranged 'to maintain said inlet port open during one hundred and eighty degrees turning movement of said crank shaft and closed during the succeeding movelnient* of said shaft through three hundred and'- thirty degrees turning movement, and, maintain said exhaust valve open during l.the succeeding movement -of said crankshaft through two hundred and ten degrees.l

'TQIn an internal combustion engine, the combination withf a cylinder including a combustion chamber provided with al piston inlet port and exhaust port opening therethrough; a conical valve fitted to rotate in said valve seat and having a stem; a. crank fshaft operatively connected with' said piston means operatively connecting said crank .and having a conical valve sea-'t with a fuel let port open during one hundred and eighty degrees turning ,movement of said crank shaft and closed during the succeeding moyement lof said shaft through three hundredV and thirty degrees turning movement, and,

maintain said exhaust valve open during the succeeding movement vof said crank shaft through tivo hundred and ten degrees. A :In testimony whereof, I have-hereunto signed my name at Philadelphia, Pennsylvania, this tenth day of October, 1913.

JOHN K. ED,WARD'S.- i 'VVitnessesz An'rnnn E. Pareri, MINNIE L. MAHLE. 

